What is the best swap aggregator for Solana?

I'm curious, could you elaborate on what makes the best swap aggregator for Solana stand out from the rest? Is it the number of decentralized exchanges it integrates with, the fees it charges, or the user-friendliness of its interface? And how does it specifically cater to the unique needs and characteristics of the Solana blockchain? Additionally, what security measures does it employ to ensure the safety of users' funds and transactions? Ultimately, what factors should one consider when choosing a swap aggregator for Solana?